DE2963766D1 - Apparatus for the simultaneous biaxial stretching of a plastic sheet, in particular a polypropylene sheet - Google Patents

Apparatus for the simultaneous biaxial stretching of a plastic sheet, in particular a polypropylene sheet

Info

Publication number
DE2963766D1
DE2963766D1 DE7979200239T DE2963766T DE2963766D1 DE 2963766 D1 DE2963766 D1 DE 2963766D1 DE 7979200239 T DE7979200239 T DE 7979200239T DE 2963766 T DE2963766 T DE 2963766T DE 2963766 D1 DE2963766 D1 DE 2963766D1
Authority
DE
Germany
Prior art keywords
sheet
biaxial stretching
simultaneous biaxial
polypropylene
plastic sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE7979200239T
Other languages
German (de)
Inventor
Friedrich Freiherr Von Aufsess
Rotger Armsen
Hans Pohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19787815102 external-priority patent/DE7815102U1/en
Priority claimed from DE19782825209 external-priority patent/DE2825209C3/en
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to DE7979200239T priority Critical patent/DE2963766D1/en
Application granted granted Critical
Publication of DE2963766D1 publication Critical patent/DE2963766D1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • B29C55/165—Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
DE7979200239T 1978-05-19 1979-05-17 Apparatus for the simultaneous biaxial stretching of a plastic sheet, in particular a polypropylene sheet Expired DE2963766D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE7979200239T DE2963766D1 (en) 1978-05-19 1979-05-17 Apparatus for the simultaneous biaxial stretching of a plastic sheet, in particular a polypropylene sheet

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19787815102 DE7815102U1 (en) 1978-05-19 1978-05-19 DEVICE FOR RECESSING A FLAT SHEET MADE OF PLASTIC
DE19782825209 DE2825209C3 (en) 1978-06-08 1978-06-08 Method and device for the production of biaxially stretched film webs made of plastic
DE7979200239T DE2963766D1 (en) 1978-05-19 1979-05-17 Apparatus for the simultaneous biaxial stretching of a plastic sheet, in particular a polypropylene sheet

Publications (1)

Publication Number Publication Date
DE2963766D1 true DE2963766D1 (en) 1982-11-11

Family

ID=25774662

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979200239T Expired DE2963766D1 (en) 1978-05-19 1979-05-17 Apparatus for the simultaneous biaxial stretching of a plastic sheet, in particular a polypropylene sheet

Country Status (4)

Country Link
EP (1) EP0005577B1 (en)
JP (1) JPS5760131B2 (en)
DE (1) DE2963766D1 (en)
WO (1) WO1979001090A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123854A (en) * 1964-03-10 Apparatus for biaxial stretching of thermoplastic
DE1234374B (en) * 1961-03-21 1967-02-16 Brueckner Trocknerbau Inh Gern Device for biaxially stretching a material web in longitudinal and transverse directions
US3632728A (en) * 1968-12-31 1972-01-04 Nippon Rayon Kk Simultaneous biaxial drawing process for polyamide films
DE2215135A1 (en) * 1972-03-28 1973-10-04 Mobil Oil Corp Biaxially oriented plastic film - with appts having series of station rollers engaging clamping plates on chain
JPS5243844A (en) * 1975-10-02 1977-04-06 Bouootaa Patsukeejingu Ltd Method and apparatus for applying coating material on substrate layer

Also Published As

Publication number Publication date
JPS55500358A (en) 1980-06-19
EP0005577A1 (en) 1979-11-28
WO1979001090A1 (en) 1979-12-13
JPS5760131B2 (en) 1982-12-17
EP0005577B1 (en) 1982-09-29

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee